Tehran International School

Tehran International & Adaptive School (TIS) is an international school located in North Tehran, Iran. It consists of three campuses: girls, boys elementary and boys grade 7–12. The school offers the International Baccalaureate's IB Diploma Programme. Boys attend school in Saadat Abad, while girls attend school in Shahrak-e Gharb. There are two divisions per school: an international school for non-Iranians, which consists of mainly an ex-patriate student body (it enrols very few Iranian nationals); and an adaptive school for Iranians returning from abroad who need to re-adjust to the Iranian educational system.

It was established in 1985 under the Education Ministry of Iran.

Operations
Boys in the international school are expected to wear light blue collared shirts and dark blue trousers as part of their school uniform, while boys in the re-adaptive school are expected to wear blue collared shirts and dark blue trousers. Girls are expected to wear manto with maghnaeh.